SB2014122301 - Slackware Linux update for php

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Main Vulnerability Database SB2014122301

SB2014122301 - Slackware Linux update for php

Published: December 23, 2014

Security Bulletin ID SB2014122301
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2014-8142)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to use-after-free vulnerability in the process_nested_data function in ext/standard/var_unserializer.re in PHP before 5.4.36, 5.5.x before 5.5.20, and 5.6.x before 5.6.4. A remote attacker can trigger memory corruption via a crafted unserialize call that leverages improper handling of duplicate keys within the serialized properties of an object and execute arbitrary code. Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


2) Out-of-bounds read (CVE-ID: CVE-2014-3710)

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to the donote function in readelf.c in file through 5.20, as used in the Fileinfo component in PHP 5.4.34, does not ensure that sufficient note headers are present. A remote attacker can trigger out-of-bounds read and cause the application to crash via a crafted ELF file.

Remediation

Install update from vendor's website.

References